lecture 10 Flashcards
T/F The alveolar process is one of the least actively adaptable areas of bone growth during the period of transition between the adult and the primary dentitions.
False
-The most actively adaptable
How long does phase 1 ortho treatment last?
6-12 months
What is phase 1 ortho treatment?
-Limited treatment performed on a patient before all primary teeth are lost
The AAO recommends that every child receive an ortho evaluation and pano x ray before what age?
-8
Early ortho treatment and intervention can help correct possibility for trauma from what?
- Severe deep bites
- Cross bites
- Protruded maxillary incisors
What is the mesial distal diameter of the maxillary permanent teeth?
128 mm
What is the mesial distal diameter of the mandibular permanent teeth?
126 mm
Patients with class III skeletal growth pattern are difficult to control and typically have what type of bite seen?
-Anterior crossbite with maxillary constriction
What is the ideal force for orthopedic changes with head gear?
250-450 g per side
What is an occipital pull head gear?
-Restricts inferior and anterior maxillary growth
What is a cervical pull head gear?
-Restricts superior and anterior maxillary growth but can extrude maxillary molars and cause an open bite
What is combination pull head gear?
-restricts anterior maxillary growth
Where does the maxilla move with an occipital pull head gear?
-Downward and backward
How much maxillary expansion is possible with a jackscrew mechanism?
5-15 mm
